Electric power fitting for high-voltage circuit iron tower

Abstract

The invention belongs to the technical field of electric power fittings, and discloses an electric power fitting for a high-voltage circuit iron tower, which comprises a connecting main frame and a clamping piece formed by hinging two clamping jaws, and also comprises a plurality of groups of connecting brackets respectively arranged at four corners of the connecting main frame, and hook pieces arranged at the end parts of the connecting brackets. According to the scheme, after the four clamping pieces are clamped on the corresponding cables respectively, the clamping pieces are connected with the connecting support through the hook pieces, an operator pulls the cables by changing the length of the connecting support, the clamping pieces start to be locked in the pulling process, and therefore pulling and clamping locking are conducted synchronously, and the pulling efficiency is improved. The spacer mounting efficiency of an operator is improved, and the mounting safety is improved at the same time.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power fittings, in particular to an electric power fitting for a high-voltage circuit iron tower. Background Art

[0002] Power fittings are metal accessories used to connect, secure, protect, and support conductors, ground wires, insulators, and related equipment in locations such as overhead power lines and substations. Spacers are a type of protective fitting specifically designed for split-conductor transmission lines. Their primary function is to maintain spacing between the individual conductors in a split conductor, preventing them from colliding with each other, thereby protecting the conductors and ensuring safe and stable line operation.

[0003] Installing spacers (used to connect split conductors to increase rigidity and stability) in high-voltage transmission lines requires high-altitude work. Due to the heavy weight and sag of the conductors, operators, after securing the spacer to one conductor, must still laboriously manually pull the remaining conductors to the clamping position and clamp them. This laborious, high-altitude manual operation reduces operator efficiency and increases the risk of the installation process. To address these issues, a power fitting for high-voltage circuit towers is proposed. Summary of the Invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides an electric power fitting for a high-voltage circuit tower, which solves the problem that manually pulling the wire to the clamping position will reduce installation efficiency, be laborious and increase the risk during installation.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an electric power fitting for a high-voltage circuit tower, comprising a connecting main frame and a clamping member formed by two hinged clamping jaws, and further comprising: a plurality of connecting brackets respectively arranged at the four corners of the connecting main frame, and hooks arranged at the ends of the connecting brackets;

[0006] The connecting bracket includes a sleeve member hinged on the connecting main frame, the sleeve member is internally threaded with a threaded rod, a movable rod is sleeved in the threaded rod and the movable rod can rotate circumferentially in the threaded rod, one end of the movable rod located in the threaded rod is provided with a step to prevent the movable rod from separating from the threaded rod, one end of the movable rod extends to the outside of the threaded rod and is hinged to the hook member, and a nut kit is fixedly sleeved on the outer periphery of the threaded rod;

[0007] Among them, both clamping jaws are provided with a second positioning bevel, and the hook is provided with a first positioning bevel. The hook can pass through the two clamping jaws by rotating around the axis, and when the hook moves toward the connecting main frame, the first positioning bevel can squeeze the second positioning bevel, thereby causing the two clamping jaws to move toward each other.

[0008] Preferably, the positioning slope 1 is composed of two slopes with opposite inclination directions and intersecting top ends, and the range of the two ends of the bottom of the positioning slope 1 can cover the top ends of the two positioning slopes 2 (41).

[0009] Preferably, an insulating rubber pad is installed on the inner arc surface of the clamping jaw, the diameter of the inner arc surface of the clamping jaw is larger than the diameter of the cable, and the diameter of the inner arc surface of the insulating rubber pad is smaller than the diameter of the cable.

[0010] Preferably, a supporting spring sheet is provided on the outer periphery of the clamping member, and both ends of the supporting spring sheet are used to support the two clamping jaws to maintain a closing tendency.

[0011] Preferably, the end of the clamping jaw is further provided with auxiliary inclined surfaces 2 located on both sides of the second positioning inclined surface, and the slope of the auxiliary inclined surfaces 2 is greater than that of the second positioning inclined surface;

[0012] The hook is further provided with auxiliary inclined surfaces 1 on both sides of the positioning inclined surface 1. The auxiliary inclined surfaces 2 on the two clamping jaws can be inserted into the auxiliary inclined surface 1 and squeezed by the auxiliary inclined surface 1 after they are close to each other.

[0013] Preferably, one end of the movable rod can move in the axial direction within the threaded rod, and the movable rod can move a distance that is less than half of the distance that the threaded rod can move within the sleeve.

[0014] Preferably, the inner corners of the connecting main frame are fixed with positioning kits, and the sleeve member elastically supports a tension spring combination positioning pin with a tendency to move toward the threaded rod;

[0015] The bottom of the threaded rod is threadedly connected with a threaded plug. When the threaded plug moves toward the tension spring combination locating pin, it can squeeze the tension spring combination locating pin to move and make the other end of the tension spring combination locating pin be stuck in the positioning kit.

[0016] Preferably, a recessed portion is provided at the bottom of the threaded plug, and a ball is movably connected to one end of the tension spring combination positioning pin close to the recessed portion, and the ball can fit in the recessed portion.

[0017] Preferably, the threaded rod is provided with an anti-slip assembly for limiting the circumferential rotation of the threaded rod.

[0018] Preferably, a second circular ring member is fixedly mounted on one end of the sleeve member, and the second circular ring member is provided with two symmetrically distributed arc-shaped sockets;

[0019] The anti-slip assembly includes a circular ring member 1 fixedly sleeved on the outer circumference of the threaded rod, and a spring latch is symmetrically arranged on the circular ring member 1. The spring latch is subjected to its own elastic force so that one end is located outside the circular ring member 1;

[0020] The spring latch has a diameter smaller than the width of the arc-shaped socket and can be inserted into the arc-shaped socket.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The above solution is to clamp the four clamping parts on the corresponding cables respectively, and then connect the clamping parts to the connecting bracket through the hook. The operator can pull the cable by changing the length of the connecting bracket, and the clamping parts will also start to lock during the pulling process, so as to achieve simultaneous pulling and clamping and locking, which improves the operator's efficiency in installing the spacer bars and also improves the safety during installation.

[0023] When the threaded rod is screwed into the sleeve part through the above scheme, the threaded plug is driven to move axially and squeeze and push the tension spring combination positioning pin with the tension spring combination positioning pin so that one end of the tension spring combination positioning pin is stuck in the positioning kit, thereby limiting the rotation of the sleeve part. At this time, the hook part can only rotate around the end of the movable rod, reducing the radius of rotation of the hook part and the clamping part around the axis, increasing the stability of the connection, and also providing space for the hook part and the clamping part to move to improve the service life of the device.

[0024] The above scheme drives the circular ring part 1 to rotate synchronously and move in the axial direction through the rotation of the threaded rod. When the spring pin abuts against the circular ring part 2, the spring pin will be compressed and force will be accumulated. When the spring pin coincides with the corresponding arc-shaped socket in the axial direction, the spring pin will be stuck in the arc-shaped socket due to its own elastic force. At this time, the circular ring part 1 cannot rotate, thereby avoiding the situation where the threaded rod is vibrated and causes it to be screwed out of the sleeve part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a front view planar structural schematic diagram of the present invention;

[0027] Figure 3 This is a schematic structural diagram of the connecting bracket of the present invention;

[0028] Figure 4 It is a partial cross-sectional structural diagram of the main frame connected to the present invention;

[0029] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0030] Figure 6 It is a structural schematic diagram of the hook member of the present invention;

[0031] Figure 7 This is a structural diagram of the spring assembly positioning pin of the present invention;

[0032] Figure 8 It is a schematic structural diagram of the anti-slip component of the present invention.

[0033] In the figure: 1. Connecting main frame; 11. Positioning kit; 2. Connecting bracket; 21. Sleeve piece; 211. Circular ring piece 2; 212. Arc socket; 22. Threaded rod; 221. Threaded plug; 222. Recessed portion; 23. Movable rod; 24. Nut kit; 3. Hook piece; 31. Positioning slope 1; 32. Auxiliary slope 1; 4. Clamping piece; 41. Positioning slope 2; 42. Auxiliary slope 2; 43. Insulating rubber pad; 44. Supporting spring; 5. Tension spring combination positioning pin; 51. Ball; 6. Anti-slip assembly; 61. Circular ring piece 1; 62. Spring latch. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1

[0036] This embodiment provides a technical solution: a linear guide punching machine, such as Figure 1-Figure 7 As shown, it includes a connecting main frame 1 and a clamping member 4 formed by two hinged clamping claws, and also includes: a plurality of connecting brackets 2 respectively arranged on the four corners of the connecting main frame 1, and a hook member 3 arranged at the end of the connecting bracket 2;

[0037] The connecting bracket 2 includes a sleeve member 21 hingedly connected to the connecting main frame 1. A threaded rod 22 is connected to the sleeve member 21 through an internal thread. A movable rod 23 is sleeved inside the threaded rod 22 and can rotate circumferentially inside the threaded rod 22. A step is provided at one end of the movable rod 23 located inside the threaded rod 22 to prevent the movable rod 23 from detaching from the threaded rod 22. One end of the movable rod 23 extends to the outside of the threaded rod 22 and is hinged to the hook member 3. A nut set 24 is fixedly sleeved on the outer periphery of the threaded rod 22.

[0038] Among them, both clamping jaws are provided with a second positioning bevel 41, and the hook member 3 is provided with a first positioning bevel 31. The hook member 3 can rotate around the axis to pass through the two clamping jaws, and when the hook member 3 moves toward the connecting main frame 1, the first positioning bevel 31 can squeeze the second positioning bevel 41, thereby causing the two clamping jaws to move toward each other.

[0039] The first positioning slope 31 is composed of two slopes with opposite inclination directions and intersecting tops. The range of the two ends of the bottom of the first positioning slope 31 can cover the tops of the two auxiliary second positioning slopes 41.

[0040] like Figure 5 and Figure 6The inner arc surface of the clamping jaw is installed with an insulating rubber pad 43. The inner arc surface diameter of the clamping jaw is larger than the diameter of the cable, and the inner arc surface diameter of the insulating rubber pad 43 is smaller than the diameter of the cable. The outer periphery of the clamping member 4 is provided with a supporting spring 44. The ends of the supporting spring 44 are used to support the two clamping jaws to maintain the closing tendency.

[0041] like Figure 6 The end of the clamping jaw is also provided with auxiliary inclined surfaces 42 located on both sides of the positioning inclined surface 41, and the slope of the auxiliary inclined surface 42 is greater than that of the positioning inclined surface 41; the hook 3 is also provided with auxiliary inclined surfaces 32 located on both sides of the positioning inclined surface 31, and the auxiliary inclined surfaces 42 on the two clamping jaws can be inserted into the auxiliary inclined surface 32 and squeezed by it when they approach each other.

[0042] like Figure 7 One end of the movable rod 23 can move in the axial direction within the threaded rod 22 , and the distance that the movable rod 23 can move is less than half of the distance that the threaded rod 22 can move in the sleeve member 21 .

[0043] During installation, the operator clamps the clamping member 4 on the cable to close it, and then rotates the hook member 3 around the axis and passes through the clamping jaws, so that the opening at the bottom of the positioning inclined surface 1 31 covers the top of the two positioning inclined surfaces 2 41. The operator installs the four clamping members 4 on the corresponding cables in turn and performs the above operations. The operator puts a wrench on the outside of the nut kit 24 and rotates it, thereby driving the threaded rod 22 to screw into the sleeve member 21, thereby shortening the overall length of the connecting bracket 2, and then driving the clamping member 4 to move through the hook member 3 to achieve the pulling effect on the cable. At the same time, when the clamping member 4 is subjected to pressure from the hook member 3, the positioning inclined surface 1 31 on it will squeeze the positioning inclined surfaces 2 41 on the two clamping jaws, so that the clamping member 4 is in a stable closed state;

[0044] It is worth noting that lubricating oil needs to be added to the cavity of the threaded rod 22. Since the hook 3 is installed on the clamping part 4, when the clamping part 4 is clamped on the cable, the clamping part 4 cannot rotate with the hook 3 and the movable rod 23. Therefore, when the threaded rod 22 rotates, the lubricating oil can reduce the friction between the movable rod 23 and the threaded rod 22.

[0045] like Figure 5 and Figure 6 As shown, the design of the inner arc surface diameter of the clamping jaw being larger than the diameter of the cable enables the clamping member 4 to be installed on the cable. At the same time, the insulating rubber pad 43 can make the clamping member 4 more stably clamped on the cable when squeezed and deformed without sliding easily.

[0046] like Figure 6As shown, after the positioning bevel 1 31 squeezes the two auxiliary bevels 2 42 closer to each other, the auxiliary bevel 1 32 will squeeze the auxiliary bevel 2 42. Since the slopes of the auxiliary bevel 1 32 and the auxiliary bevel 2 42 are greater than the slopes of the positioning bevel 1 31 and the positioning bevel 2 41, when the hook 3 pulls the clamping member 4 and drives the cable to move, the auxiliary bevel 1 32 squeezes the auxiliary bevel 2 42, which can make the insulating rubber pad 43 close more tightly and stably, and can provide greater pressure compared to the method of using only the positioning bevel 1 31 to squeeze the auxiliary bevel 1 32.

[0047] The provision of the supporting spring piece 44 enables the clamping member 4 to be clamped on the cable by means of the elastic force of the supporting spring piece 44 , further facilitating installation by the operator.

[0048] like Figure 7 As shown, by configuring the movable rod 23 to be movable in the axial direction within the threaded rod 22, when the cable spacing is small, the operator can quickly connect the hook member 3 to the clamping member 4 by pulling the movable rod 23 axially instead of rotating the threaded rod 22, thereby improving installation efficiency.

[0049] It is worth noting that when the cable spacing is too large, the operator can move the movable rod 23 and rotate the threaded rod 22 to increase the traction range.

[0050] Example 2

[0051] This embodiment is further optimized on the basis of the first embodiment, and the same parts as the above technical solutions will not be repeated here. In order to better implement the present invention, the following setting is particularly adopted: Figure 4 、 Figure 5 and Figure 7 The inner corners of the main frame 1 are fixedly connected to a positioning sleeve 11. A tension spring assembly positioning pin 5, which tends to move toward the threaded rod 22, is elastically supported within a sleeve 21. A threaded plug 221 is threadedly connected to the bottom of the threaded rod 22. When the threaded plug 221 moves toward the tension spring assembly positioning pin 5, it compresses the tension spring assembly positioning pin 5 and causes the other end of the tension spring assembly positioning pin 5 to snap into the positioning sleeve 11. A recess 222 is defined at the bottom of the threaded plug 221. A ball 51 is movably connected to the end of the tension spring assembly positioning pin 5 near the recess 222, and the ball 51 can fit in the recess 222.

[0052] During use, when the threaded rod 22 is screwed into the sleeve member 21, it will also drive the threaded plug 221 to move axially, squeezing the tension spring combination positioning pin 5, and then pushing the tension spring combination positioning pin 5 so that one end of it is stuck in the positioning kit 11, thereby limiting the rotation of the sleeve member 21. At this time, the hook member 3 can only rotate around the end of the movable rod 23, reducing the radius of the hook member 3 and the clamping member 4 that can rotate around the axis, increasing the stability of the connection, and also providing space for the hook member 3 and the clamping member 4 to move to increase the service life of the device.

[0053] It is worth noting that since the threaded plug 221 contacts the tension spring combination positioning pin 5 through the recessed portion 222 and the ball 51, the friction between the threaded plug 221 and the tension spring combination positioning pin 5 is reduced during the rotation and advancement of the threaded rod 22.

[0054] Example 3

[0055] This embodiment is further optimized on the basis of the first embodiment, and the same parts as the above technical solutions will not be repeated here. In order to better implement the present invention, the following configuration is particularly adopted: Figure 4-Figure 8 The threaded rod 22 is provided with an anti-slip component 6 for limiting the circumferential rotation of the threaded rod 22. One end of the sleeve member 21 is fixedly sleeved with a second circular ring member 211. The second circular ring member 211 has two symmetrically distributed arc-shaped sockets 212.

[0056] The anti-slip assembly 6 includes a circular ring member 61 fixedly sleeved on the outer circumference of the threaded rod 22, and a spring pin 62 is symmetrically arranged on the circular ring member 61. The spring pin 62 is subjected to its own elastic force so that one end is located outside the circular ring member 61; the diameter of the spring pin 62 is smaller than the width of the arc socket 212 and can be inserted into the arc socket 212.

[0057] When in use, the rotation of the threaded rod 22 will drive the circular ring part 1 61 to rotate synchronously and move in the axial direction. When the spring pin 62 abuts against the circular ring part 211, the spring pin 62 will be compressed and force will be stored. When the spring pin 62 coincides with the corresponding arc socket 212 in the axial direction, the spring pin 62 will be stuck in the arc socket 212 due to its own elastic force. At this time, the circular ring part 1 61 cannot rotate, thereby avoiding the situation where the threaded rod 22 will be vibrated and cause it to be screwed out of the sleeve part 21.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An electric power fitting for a high-voltage circuit tower, comprising a connecting main frame (1) and a clamping member (4) formed by two hinged clamping jaws, characterized in that: Also includes: A plurality of connecting brackets (2) are respectively arranged on the four corners of the connecting main frame (1), and hooks (3) are arranged at the ends of the connecting brackets (2); The connecting bracket (2) includes a sleeve member (21) hinged on the connecting main frame (1), the sleeve member (21) is internally threadedly connected to a threaded rod (22), a movable rod (23) is sleeved inside the threaded rod (22), and the movable rod (23) can rotate circumferentially inside the threaded rod (22), one end of the movable rod (23) located inside the threaded rod (22) is provided with a step to prevent the movable rod (23) from detaching from the threaded rod (22), one end of the movable rod (23) extends to the outside of the threaded rod (22) and is hinged to the hook member (3), and a nut set (24) is fixedly sleeved on the outer periphery of the threaded rod (22); Wherein, both clamping jaws are provided with a second positioning bevel (41), and the hook member (3) is provided with a first positioning bevel (31). The hook member (3) can pass through the two clamping jaws when rotating around the axis, and when the hook member (3) moves toward the connecting main frame (1), the first positioning bevel (31) can press the second positioning bevel (41), thereby causing the two clamping jaws to move toward each other.

2. The power fitting for a high-voltage circuit tower according to claim 1, characterized in that: The positioning bevel one (31) is composed of two bevels with opposite inclination directions and intersecting top ends. The range of the two ends of the bottom of the positioning bevel one (31) can cover the top ends of the two positioning bevel two (41).

3. The power fitting for a high-voltage circuit tower according to claim 1, characterized in that: An insulating rubber pad (43) is installed on the inner arc surface of the clamping jaw, the diameter of the inner arc surface of the clamping jaw is larger than the diameter of the cable, and the diameter of the inner arc surface of the insulating rubber pad (43) is smaller than the diameter of the cable.

4. The power fitting for a high-voltage circuit tower according to claim 1, characterized in that: A supporting spring sheet (44) is provided on the outer periphery of the clamping member (4), and the two ends of the supporting spring sheet (44) are used to support the two clamping jaws to maintain a closing tendency.

5. The power fitting for high-voltage circuit tower according to claim 1, characterized in that: The end of the clamping jaw is also provided with auxiliary inclined plane 2 (42) located on both sides of the positioning inclined plane 2 (41), and the slope of the auxiliary inclined plane 2 (42) is greater than that of the positioning inclined plane 2 (41); The hook member (3) is also provided with auxiliary inclined planes (32) on both sides of the positioning inclined plane (31). The auxiliary inclined planes (42) on the two clamping jaws can be inserted into the auxiliary inclined plane (32) and squeezed by the auxiliary inclined plane (32) when the two clamping jaws are close to each other.

6. The power fitting for a high-voltage circuit tower according to claim 1, characterized in that: One end of the movable rod (23) can move in the axial direction within the threaded rod (22), and the movable distance of the movable rod (23) is less than half of the movable distance of the threaded rod (22) within the sleeve member (21).

7. The power fitting for a high-voltage circuit tower according to claim 1, characterized in that: The inner corners of the connecting main frame (1) are fixedly connected with positioning kits (11), and the sleeve member (21) elastically supports a tension spring combination positioning pin (5) with a tendency to move toward the threaded rod (22); The bottom of the threaded rod (22) is threadedly connected to a threaded plug (221). When the threaded plug (221) moves toward the tension spring combination positioning pin (5), it can squeeze the tension spring combination positioning pin (5) to move and make the other end of the tension spring combination positioning pin (5) snap into the positioning kit (11).

8. The power fitting for a high-voltage circuit tower according to claim 7, characterized in that: A recessed portion (222) is provided at the bottom of the threaded plug (221), and a ball (51) is movably connected to one end of the tension spring combination positioning pin (5) close to the recessed portion (222), and the ball (51) can fit in the recessed portion (222).

9. The power fitting for a high-voltage circuit tower according to claim 1, characterized in that: The threaded rod (22) is provided with an anti-slip assembly (6) for limiting the circumferential rotation of the threaded rod (22).

10. The power fitting for a high-voltage circuit tower according to claim 9, characterized in that: One end of the sleeve member (21) is fixedly sleeved with a second circular ring member (211), and the second circular ring member (211) is provided with two symmetrically distributed arc-shaped sockets (212); The anti-slip assembly (6) includes a circular ring member (61) fixedly sleeved on the outer periphery of the threaded rod (22), and a spring latch (62) is symmetrically arranged on the circular ring member (61). The spring latch (62) is subjected to its own elastic force so that one end is located outside the circular ring member (61); The spring latch (62) has a diameter smaller than the width of the arc-shaped socket (212) and can be inserted into the arc-shaped socket (212).

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